// Top-level build file where you can add configuration options common to all sub-projects/modules. buildscript { ext.kotlin_version = "1.5.20" ext.core_ktx_version = "1.3.2" ext.appcompat_version = "1.3.0" ext.material_version = "1.3.0" repositories { maven { url 'https://maven.aliyun.com/repository/public' } maven { url 'https://maven.aliyun.com/repository/google' } maven { url "https://jitpack.io" } mavenCentral() } dependencies { classpath "com.android.tools.build:gradle:4.2.1" classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" } } allprojects { repositories { maven { url 'https://maven.aliyun.com/repository/public' } maven { url 'https://maven.aliyun.com/repository/google' } maven { url "https://jitpack.io" } mavenCentral() } } task clean(type: Delete) { delete rootProject.buildDir } ext { kotlin_version = "1.5.20" core_ktx_version = "1.3.2" appcompat_version = "1.3.0" material_version = "1.2.1" }